期刊
JOURNAL OF EARTHQUAKE ENGINEERING
卷 27, 期 6, 页码 1514-1533出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/13632469.2022.2083727
关键词
Spectral input energy; spectral acceleration; correlation coefficient; energy-based seismic design; conditional seismic hazard; ground-motion record selections
This study develops a correlation model to consider the joint consideration of multiple intensity measures (IMs) in earthquake engineering applications. The results show a strong correlation between the spectral amplitudes at the same period, and the correlation decreases as the period difference increases. This model can explicitly consider the ground motion characteristics in earthquake engineering applications.
Correlating different intensity measures (IMs) enables the joint consideration of multiple IMs in various performance-based earthquake engineering applications, such as ground motion selection. The correlations between the spectral input energy and spectral accelerations have not been previously examined. This study develops a correlation model quantifying the uncertainties due to GMPE selection and a finite sample size. The results show a strong correlation between the spectral amplitudes at the same period, and the correlation decreases as the period difference increases. With the proposed model, ground motion characteristics reflected by the input energy can be explicitly considered in performance-based earthquake engineering applications.
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